body{
	background-image: url(图片//photo.jpg);
	
	background-attachment:fixed;
	background-size:cover;
	background-repeat: no-repeat;
	text-align:center;


}
h1 {
  color: black;
  font-size:4em;
  text-align:center;
}
#elixirs{
	
 
  padding: 300px 50px 20px 20px;
  margin-left: 20px;
  text-align: center;
  background-image: url("images/cocktail.gif");
  background-repeat: repeat-x;
  line-height: 1;
  float: right;
}
#b1{
	width:60px;
	height:30px;
	background-color:white;
	  padding: 5px 10px 10px 10px;
}
.mybtn:visited {
  background: gray;/*设置按钮的颜色*/
}
a:link {
  text-decoration:  none;/*取消超链接的下划线*/
}

